Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 239-362-1 | CAS number: 15332-99-7
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Short-term toxicity to invertebrate: 48-h EC50 169 mg/l (nominal) (EU method C.2), read-across from an analogous substance, trimethoxyvinylsilane (CAS 2768-02-7). The EC50 is equivalent to 121 mg/l when expressed in terms of the silanol hydrolysis product.
Key value for chemical safety assessment
Additional information
There are no reliable short-term invertebrate toxicity data available for tris(isopropenyloxy)(vinyl)silane (CAS 15332-99-7), therefore good quality data for an appropriate structural analogue, trimethoxyvinylsilane (CAS 2768-02-7), have been read across. Both substances share the same silanol hydrolysis product, vinylsilanetriol. The other hydrolysis products are propen-2-ol and methanol, respectively.
A 48-h EC50 value of 169 mg/l (nominal) has been determined for the effects of trimethyl(vinyl)silane (CAS 2768-02-7) on mobility of Daphnia magna. In view of the test media preparation method/exposure regime it is likely that the test organisms were exposed predominantly to the hydrolysis products of the tested substance. The results may be expressed in terms of concentration of the hydrolysis product, vinylsilanetriol, by applying a molecular weight correction: (MW of silanol = 106.15 / MW of parent = 148.24) * 169 = 121 mg/l as vinylsilanetriol.
Refer to the discussion in the Section 6 endpoint summary for further discussion of the approach to chemical safety assessment for this registration substance, and justification for read-across used.
References:
Hüls (1993). Bestimmung der Auswirkungen von Dynasylan VTMO auf das Schwimmverhalten von Daphnia magna (nach EG 84/449, Nov 1989). Testing laboratory: Hüls Aktiengesellschaft, Marl, Germany. Report no.: DK-561. Owner company: Evonik. Report date: 1993-08-04.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
